Metal Hybrid Inductor
CDMT40D30
Note： This specification is subject to change without notice. Please contact your nearest sales office for updated information when placing an order.
Page 1 of 4 Ver.2.0 (December 20, 2017)
www.sumida.com
Description
Metal Hybrid Inductor
Magnetically shielded
Suitable for Large Current
Size: 4.3 x 4.3 x H3.1 mm Max.
Product weight: 0.28g (Ref.)
Halogen Free available
Operating temperature range: - 40℃～+125℃
(Not including coil’s self temperature rise)
Applications
Telecommunication base station , Server , SSD,
and other low profile high current application
Dimension - [mm]
Reference Land pattern - [mm] Schematics
Metal Hybrid Inductor
CDMT40D30
Note： This specification is subject to change without notice. Please contact your nearest sales office for updated information when placing an order.
Page 2 of 4 Ver.2.0 (December 20, 2017)
www.sumida.com
Electrical Characteristics
Part No.
Inductance
(μH) (±30％)
※1
D.C.R (mΩ)
Max. (Typ.)
Saturation Current (A)
20℃ ※2
Temperature Rise current(A) ※3
※4
※5
CDMT40D30HF-3R3NC
3.3
25.3(23.0)
5.5
4.3
6.6
CDMT40D30HF-4R7NC
4.7
40.7(37.0)
4.5
3.6
5.1
CDMT40D30HF-6R8NC
6.8
68.2(62.0)
3.5
2.7
3.9
※ 1 Measuring frequency at 100kHz
※ 2. Saturation current: This indicates the actual value of D.C. current when the inductance becomes 30% lower than its
initial value.
※ 3 Temperature rise current: The actual value of D.C. current when the temperature of coil becomes △T=40°C
(Ta=20°C).
※ 4. Measurement condition: Irms testing was performed by a product in 20°C ambient.
※ 5. Measurement condition: Irms testing was performed on copper traces in 20°C ambient.
※ Discharge static electricity before handling this coil. Take the static electricity measures to prevent deterioration of
electric characteristic
Metal Hybrid Inductor
CDMT40D30
Note： This specification is subject to change without notice. Please contact your nearest sales office for updated information when placing an order.
Page 3 of 4 Ver.2.0 (December 20, 2017)
www.sumida.com
Saturation Current & Temperature Rise Graph
CDMT40D30HF-3R3NC CDMT40D30HF-4R7NC
CDMT40D30HF-6R8NC
Metal Hybrid Inductor
CDMT40D30
Note： This specification is subject to change without notice. Please contact your nearest sales office for updated information when placing an order.
Page 4 of 4 Ver.2.0 (December 20, 2017)
www.sumida.com
Inductance vs Frequency Graph
Derating Curve (Temperature Rise Current)
For sales office information, please click here to visit our website.
